When Tim Thomas weighs in, smart people read.

http://online.wsj.com/article/SB1000...379430724.html

The clearest sign of change came in a March 11 speech by Tom Donilon, President Obama's national security adviser, who condemned "cyber intrusions emanating from China on an unprecedented scale" and declared that "the international community cannot tolerate such activity from any country." Chinese cyber aggression poses risks "to international trade, to the reputation of Chinese industry and to our overall relations," Mr. Donilon said, and Beijing must stop it.

"Why did we wait so long?" wonders Mr. Thomas as we sit in the U.S. Army's Foreign Military Studies Office, where the 64-year-old retired lieutenant colonel has studied Chinese cyber strategy for two decades. More than enough evidence accumulated long ago, he says, for the U.S. to say to Beijing and its denials of responsibility, "Folks, you don't have a leg to stand on, sorry."